Mundelein Home Additions

Bright four-season sunroom addition with a wall of windows, tile floor and ceiling fan — representative of the home addition projects GS Construction builds in Mundelein, IL

Home Additions Experts

Expert Home Additions Services

GS Construction & Remodeling specializes in professional Home Additions. As a father-son team, we bring decades of combined experience to every project.

From initial design consultation to final walkthrough, we handle every aspect of your Home Additions project with care. Our hands-on approach means you'll always have Gregory or Patryk on-site, ensuring quality at every step.

  • Specialized Home Additions expertise
  • On-site supervision for every project
  • Transparent pricing with no surprises
  • Quality craftsmanship guaranteed
Gregory and Patryk - GS Construction
Gregory and Patryk - GS Construction
"Your Home Additions project deserves the best—we deliver it."

Home additions in Mundelein, IL

Mundelein grew in two distinct waves, and its housing shows it. The village more than tripled during the 1950s, filling in with ranches and split-levels — including Loch Lomond, the private-lake subdivision built around a 75-acre lake created in 1955 — then added nearly 10,000 residents in the 1990s as newer two-story subdivisions spread. GS Construction remodels across both eras: opening up closed-off kitchens and cramped hall baths in mid-century homes, finishing basements, and taking on whole-home updates and additions around Diamond Lake on the village's south side. Water is a planning detail here: the village runs its own Lake Michigan-supplied system and reports lead-free mains, but service lines from main to meter belong to the homeowner, and pre-1986 homes are the most likely to still have lead — worth checking the village's service-line inventory before plumbing-heavy work. Families are served by Mundelein High School District 120 and five elementary districts, with weekday Metra North Central Service trains to Chicago from the downtown station next to Village Hall.

Neighborhoods & landmarks near our Mundelein home additions

University of Saint Mary of the Lake, Mundelein High School, Carmel Catholic High School, Diamond Lake, Loch Lomond, Kracklauer Park, Barefoot Bay Family Aquatic Center, Steeple Chase Golf Club, Metra North Central Service station

Mundelein permits & building codes for home additions

The Village of Mundelein's Building Department reviews plans and issues all building permits — the village processes more than 2,600 permits and 3,000 inspections a year — with applications and payments handled through its BS&A Online portal. Contractors must also hold a current Village of Mundelein contractor registration, renewed annually per trade, before working on permitted projects, and remodels are inspected across building, electrical, plumbing, and fire disciplines. GS Construction manages the entire permit process in Mundelein, from the BS&A application and contractor registration through plan review and final inspections.

Home Additions Coverage Around Mundelein

We provide home additions in Mundelein and nearby communities to keep schedules, crews, and permitting coordination efficient.

Local ZIP coverage

Planning Home Additions in Mundelein

Most Mundelein projects start with scope alignment: what to renovate now, what to phase later, and which finishes deliver the highest daily impact. We build plans around your home layout, timeline, and budget priorities.

Execution and permitting in Mundelein

We handle sequencing, trade coordination, and code-compliance requirements for Home Additions projects in Mundelein. Permit context: The Village of Mundelein's Building Department reviews plans and issues all building permits — the village processes mor....

Nearby service coverage from Mundelein

In addition to Mundelein, we regularly complete Home Additions projects in nearby communities including Vernon Hills, Indian Creek, Libertyville. This helps keep crews, vendors, and scheduling logistics efficient across the area.

Project timelapse
Before
Frame 2
Frame 3
Frame 4
Frame 5
Frame 6
Frame 7
Frame 8
Frame 9
After
Construction

What homeowners near Mundelein say

“GS Construction & Remodeling is the best of the best. We've hired them to work on 5 different properties (4 were extensive remodels) and continue to be thrilled with their work and have referred them to friends and family. I constantly brin...”
Lisa R — Vernon Hills, IL
“I don't even know where to begin, Patryk & Greg are just amazing! We hired them to remodel approximately 4000 sqft of a 1985 house which included an unfinished basement. The whole experience could not have been better. It took about 7 month...”
Pauline & Scott Z — Long Grove, IL
“Our project turned out better than we expected and as things were going along, we added more projects. Patryk, Greg and their team did a fantastic job. They were always so nice to work with, even suggesting things which was helpful. They ne...”
Ron & Denise M — Lake Zurich, IL

Read more homeowner reviews near Mundelein →

Budgeting first? See real 2026 price ranges in our home additions cost guide — and what your Mundelein permit will add in our permit guide.

Testimonials

Your Neighbours in Mundelein Love Us

Real reviews from homeowners. Ask us for live phone references.

5 Stars

Having done a fairly large amount of “research” online I concluded that it was time to get an excellent contractor team and not second rate. GS is A + excellent. From bottom to top, their people care about doing the right thing, they are active listeners who ask for feedback, and have a very positive attitude in achieving excellence in the little matters which leads to big beautiful renovations. The difference between ordinary and extraordinary is that little extra, said a prominent fb coach, and its true in renovations. Greg Szady and Patryk Szady have high quality people and actively work with my selected and excellent designer Jenn Peterson to put my first floor into the 21st century and beyond my expectations. The designer selected very high quality materials and Patryk and Greg delivered excellent renovations installations and detail. Kudos especially to GS flooring experts because everything transformed beautifully. No one has paid me for this review or told me what to say.

Barbara B
Barbara B
Barrington, IL · Dec 2024

Completed projects around Mundelein

GS Construction crews have completed 86 projects within 10 miles of Mundelein — part of 399 completed projects across 67 Chicago-area ZIP codes. The map below shows real project density from our records, not a service-area claim.

Click to explore map
Gregory and Patryk - GS Construction
Gregory and Patryk - GS Construction

Let's Build Beautiful Spaces Together

GS Construction is a father-and-son construction company specializing in residential remodeling and renovations in Mundelein. Expect clear communication, quality craftsmanship, and a straightforward plan—reach out today to schedule a free in-home consultation and get a detailed estimate and honest feedback.

Telephone
(224) 735-4200
Service Area
Service Area
Mundelein and surrounding Chicagoland areas

Please select at least 2 different days and times you're available to meet.

Saturday morning appointments are limited. If you need a Saturday meeting, please mention it in your message. We typically schedule Saturday appointments about 4 weeks in advance.